package net.lzzy.practices.repositories;

import net.lzzy.practices.entities.User;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;

import java.util.List;
import java.util.UUID;

/**
 * @author 渊何
 */
public interface UserRepository extends JpaRepository<User, UUID> {
    /**
     * 根据用户名和密码查询用户
     * @param userName 用户名
     * @param password 密码
     * @return User对象
     */
    User findUserByUserNameAndPassword(String userName, String password);

    Integer countByUserName(String userName);
    Integer countAllBy();

    List<User> findAllByOrderByUpdateTimeDesc();

    List<User> findAllByOrderByUpdateTimeDesc(Pageable pageable);

    List<User> findUsersByApplyTeacherOrderByUpdateTimeDesc(boolean applying);

    @Query("select u from User u where u.userName like concat('%', :kw, '%') or u.nickName like concat('%', :kw, '%') " +
            "or u.email like concat('%', :kw, '%') or u.phone like concat('%', :kw, '%')")
    List<User> findByQuery(@Param("kw") String kw);

    /**
     * 返回指定用户名用户的投影 (salt)
     * @param userName 用户名
     * @return UserProjection
     */
    List<UserProjection> findUsersByUserName(String userName);

}
